I just went to a fit a few weeks ago looking to optimize a ping g410 that I have had for 3 years. First several swings on the trackman with my driver and the ball speed and smash factor were very low. Smash factor was 1.25-1.3. I am hitting good well struck shots but the ball speed is low. The fitter takes a look and gets a tool out to measure the bulge and roll and tells me I have a "Dead Head" driver and there is a flat spot on it. He hands me a new ping G425 to hit and the ball speed and smash factor both jump to where they are expected to be. Smash factor of the new driver was now 1.45-1.47 and the trackman shows 20-25 yards more carry. Somehow my 3 year old driver is not performing like it should. I have an average swing speed 97-101 and I figured I played about 500 rounds plus plenty of range time with that driver.
A "Dead Head" driver is a real thing. I have one.
